code: def longestrunningindividual(self, howmany):
      res = []
      for k, v in self.timings.items():
          for t in v:
              res.append((t, k))
      res.sort()
      res.reverse()
      res = res[:howmany]
      return res
  
imports: import time
  import sys
  import weakref
label_desc: Use image node_id 21 for calling the APSWTracer obj's underlying member method code with example usage: obj.longestrunningindividual(howmany) and returns: res